Finding the Fourth Proportional to 20,796.48, 31,207 and 10,936.52

Step by Step Solution

1. Step 1: Write the proportion equation
   20,796.48 : 31,207 = 10,936.52 : x
2. Step 2: Convert to fraction form
   20,796.48/31,207 = 10,936.52/x
3. Step 3: Cross multiply
   20,796.48x = 31,207 × 10,936.52
4. Step 4: Simplify right side
   20,796.48x = 341,295,823.61
5. Step 5: Solve for x
   x = 341,295,823.61/20,796.48
6. Step 6: Final answer
   x = 16,411.23